Vacuum Interrupter
Negotiable
China
No.3, 22nd Street, Eastern New District, Wenling City, Taizhou City, Zhejiang Province
010-83910265
Online Contact
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Product Introduction

Zhejiang Ziguang Electrical Company owns series production lines of 3.6-72.5kV indoor and outdoor circuit breakers, load switches,and vacuum interrupter contacts. The products have features of serialization, miniaturization, and specialization, etc, which is widely used in Electric power, petroleum, mining, chemical and other fields.

Product Parameters

No.

Item

Unit

Value

1

Rated voltage

Kv

12

40.5

72.5

126

2

Rated current

A

630

2500

2500

2000

3

Rated frequency

Hz

50

80

50

50

4

Short time power frequency withstand voltage(1min)

kV

42

118

160

230

5

Lightning impulse withstand voltage

kV

75

215

380

550

6

Rated short circuit breaking current

kA

20

31.5

31.5

40

7

Rated peak withstand current

kA

50

80

80

100

8

Rated short circuit making current

Ka

50

80

80

100

9

Rated short time withstand current

kA

20

31.5

31.5

40

10

Rated duration of short circuit

S

4

4

4

4

11

Switching operations of rated short circuit switching current

Times

30

30

20

30

12

Mechanical life

Times

10000

10000

10000

10000

13

Closing force due to bellow and atmosphere

N

80±30

150±50

300±50

300±50

14

Force required to hold contacts open at full stroke

N

150±50

250±50

420±100

550±100

15

Time-limited circuit resistance at rated compressive force

μΩ

≤30

≤80

≤100

≤60

16

Contact limit erosion

Mm

3

3

4

4

17

Gas pressure inside vacuum interrupter

Pa

≤1.33×10-3

18

Weight of moving parts

Kg

0.52

2.5

7.5

11.5

19

Weight of vacuum interrupter

Kg

1.60

8.28

19.5

26